Graham Greene, as I understand it, was quite outspoken in his criticism of American foreign policy.

Foreign policy is an explicitly amoral enterprise.

The purpose of foreign policy is not to provide an outlet for our own sentiments of hope or indignation; it is to shape real events in a real world.

By this I mean that a political society does not live to conduct foreign policy; it would be more correct to say that it conducts foreign policy in order to live.

A country that demands moral perfection in its foreign policy will achieve neither perfection nor security

I consider myself to be as informed on American foreign policy as anyone in America.